Spring motor



J. FEARN.

SPRING MOTOR.

No. 272,830. Patented Peb.20, 1883.

INVENTOR (70/712 Rafa, y am ATTORNEYS {No Model.) 2 Sheetg-Sheet 2.

-J. FEA'RN.

v A SPRING MOTOR. Patented 'Feb. 20, 1883,

' I0 I i INVENTOR J0 mm,

i! ATTORNEYS p," lllll h 0% N PETERS Pholo-Lilhagnphur. Washingwn. I)vc4 UNITED STATES PAT NT OFFICE.

JOHN FEARN, OF WASHINGTON, DISTRICT OF COLUMBIA.

SPRlN-G-MOTOR.

SPECIFICATION forming part of Letters Patent No. 272,830, dated February20, 1883.

Application filed January 13, 1883. (No model.)

To all whom it may concern.-

Be it known that I, JOHN FEARN, a citizen of the United States, residentat Washington, in the District of Columbia, have invented certain newand useful Improvements in Spring- Motors; and I do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being bad to the accompanying drawings,and to letters or figures of reference marked thereon, which form a partof this specification.

Figure l of the drawings is a representation of a cross-sectional viewof my motor. Fig. 2 is a side view of the same, part sectional. Fig. 3is a perspective view of the double pawl, and Fig. 4 is a perspectiveview of the single pawl.

This invention has relation to spring-motors; and it consists in theconstruction and novel arrangement of a series of springs, all connectedto the mainshai't and independent of each other, with reference to aseries of winding devices which are respectively adapted to wind one ortwo springs only ofthe series; and the invention further consists inproviding, in connection with a series of springs independentlyconnected to the main shaft, a number of ratchet-rings concentric to themain shaft and carrying the outer ends of the springs, check-pawls, andoperating-levers pivoted on the main shaft and respectively carryingsingle or double pawls to engage the teeth of a single ring or of tworings, all as hereinafter set forth.

1n the accompanying drawings, the letter A designates a cylindricalcase, which may be builtin sections in any convenient manner, said casebeing provided with central bearings, I), at its ends for the main shaft0, which may be directly connected to mechanism. Usually. however, it ispreferred to provide this shaft with a driving toothed wheel, D, whichIS in engagement with other gearing, as indicated in the drawings.

To the shaft 0 are fastened the springs E, each spring being fastened tothe shaft independently by its inner end, as indicated at f. The springsare arranged in series along the sha t, being coiled in planes at rightangles to its length. The outer ends, 9, of the springs are respectivelyattached each to a ring, H, having outer ratchet-teeth, it. Theseratchetrings H are independent of each other, and are guided by thecylinder or suitable bearings. Each ring is operated by a lever, L,carrying a pawLp, which engages the teeth of the ring. The handle end ofthe lever extends through a slot, 8, in the case-wall, and the inner endof the lever is pivoted on the main shaft, as indithe lever in theupward movements, and also.

serves to keep the springs and ratchet-rings in relative position; oreach ratchet-ring may be provided with lateralwalls inclosiiig thespring.

It is intended by this invention to providea spring-motor of greatpower, which can be easily and readily wound, as in the winding eachspring (or, when double pawls are used, pair of springs) is wound by theoperation of an independent lever and ratchet-ring.

In constructing the machine it is preferred to provide rib-bearings inthe case for the ratchet-rings, the teeth of said rings being madedouble, and the parts of each tooth separated by an inter-space, wherebythe rib is engaged.

Having described this invention, what I claim, and desire to secure byLetters Patent, 1s-

l. A spring-motor consisting of a series of coiled springs, all attachedto the main shaft, and each having an independentlever winding device,substantially as specified.

2. A springanotor having, in connection with a seriesofspringsindependently attached to the main shaft, :1 series ofindependent ratchet-rings respectively attached to the outer ends ofsaid springs and concentric to the main shaft, a series of independentcheckpawls, and a series of independent operatinglevers pivoted on themain shatt and respectively carrying single or double pawls to engagethe teeth of a single ring or of two adjacent rings, substantially asspecified.

In testimony whereof Ialiix my signature in presence of two witnesses.

\Vitnesses: JOHN FEARN.

PHILIP O. MASI, THEO. MUNGEN.'

